You can find the HASync Diagnostics at Diagnostics → HASync.
Here you have an overview of all VT AIR hasync status. In the first column you can see the hasync name, the status and the last sync date.
You can trigger a manual resync if hasync if enabled. On the top right corner you can also trigger a hasync for all enabled hasyncs.
Be aware that a sync starts with a slight delay and you might need to wait up to a minute to see the result.